Cyber Resilience

CVE-2025-34439

Open Redirect in Wwbn Avideo ≤ 20.0

Public PoCOpen Redirect
Published
17 December 2025
Modified
19 December 2025
Patch / advisory
View advisory
CVSS Score v4 4.8
Click a component to see what it means
Raw vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS Score 0.0017 6th percentile
Risk Priority 35 floored blend · peak EPSS

Summary

CVE-2025-34439 is a medium-severity Open Redirect (CWE-601) vulnerability in Wwbn Avideo. Its CVSS base score is 4.8 (Medium).

Operationally, ranked at the 6th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

The strongest mitigations our analysis identified map to SI-10 (Information Input Validation) and AC-3 (Access Enforcement) — see the control section below for these in your framework.

OWASP Top 10 for Web (2025)

A01:2025 Broken Access Control

EU & UK References

Vulnerability Data

AVideo versions prior to 20.1 are vulnerable to an open redirect flaw due to missing validation of the cancelUri parameter during user login. An attacker can craft a link to redirect users to arbitrary external sites, enabling phishing attacks.

CWE(s)
CWE-601

Related Threats

CVEs Like This One

CVE-2026-33296Same product: Wwbn Avideo
CVE-2025-34440Same product: Wwbn Avideo
CVE-2024-34899Same product: Wwbn Avideo
CVE-2025-41420Same product: Wwbn Avideo
CVE-2026-33502Same product: Wwbn Avideo
CVE-2023-49715Same product: Wwbn Avideo
CVE-2026-45578Same product: Wwbn Avideo
CVE-2026-33292Same product: Wwbn Avideo
CVE-2026-34362Same product: Wwbn Avideo
CVE-2026-47694Same product: Wwbn Avideo

Affected Assets

wwbn
avideo
≤ 20.0

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)
  • SI-10 Information Input Validation
  • AC-4 Information Flow Enforcement
  • AC-3 Access Enforcement
Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V3.7.2

Mitigating Controls (NIST 800-53 r5) AI

SI-10 Information Input Validation good match
prevent

Directly requires validation of the cancelUri input parameter to block untrusted external redirect targets.

AC-4 Information Flow Enforcement partial match
prevent

Enforces information flow rules that can restrict redirects to only approved internal destinations.

AC-3 Access Enforcement partial match
prevent

Enforces access-control policy decisions that can limit the redirect destinations permitted during login flows.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices directly require input validation and untrusted-redirect controls that prevent CWE-601.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.23 Web filtering partial match
mitigates

Preventing access to attacker-controlled or malicious sites stops users from being redirected to untrusted locations via open-redirect or phishing links.

References